I took my grandpa to the hospital this morning,_____ I missed the first class.A.or \x05\x05B.and \x05C.so \x05\x05D.but

I took my grandpa to the hospital this morning,_____ I missed the first class.A.or \x05\x05B.and \x05C.so \x05\x05D.but
I took my grandpa to the hospital this morning,_____ I missed the first class.
A.or \x05\x05B.and \x05C.so \x05\x05D.but

I took my grandpa to the hospital this morning,_____ I missed the first class.A.or \x05\x05B.and \x05C.so \x05\x05D.but
c.因为我带祖母去了医院,所以错过了第一堂课.

C

but

C。不解释。